Trap for cuspidors



Nov. 15, 1927. 7 1,649,182

A. F. FIE PE R TRAP FOR CUSPIDORS Filed June23, 1924 INVE NTOR. bias? F. i ayaer TTORNEY UL,

Patente Nov. 15, l92?.

hi i

TRAP F63- UUSPIDGBEl.

.ltpplication filed Suzie This invention relates to cuspidors and, more particularly, to fountain cuspidor apparatus of the variety, for example adapted for use adjacent a dental chair, the chief object of the iIiTQUtlOIl be ng to provide an impr ved apparatus of this character having a more simple and eiiicient construction and one in which the parts may be readily detached and recombined to facilitate assembly and afford accessibility "for cleaning and repair.

To these and other ends the invention resides in certain improvements and combina tions of parts, all as will be hereinafter more fully described the novel features being pointed out in the claims at the end of the specification.

In the drawings:

Figure l is a fragmentary sectional view 01 a dental 'cuspidor apparatus embodying the presentinvention.

Figure 2 is a sectional'view on the line 2*-2 in Figure 1.

Similar reference numerals throughout the several views indicate the same parts.

This invention is embodied in the present instance in conjunction with a unitary dental equipment pedestal or stand, such as disclosed in the patent to Oscar H. Pieper and myself. No. 1,376,356, granted April 26. 1921, for unitary dental apparatus. comprising a main hollow column from which extends a hollow arm or support 5 carrying the cuspidor and through which thewaste from the latteris discharged into the main column and through the latter to waste pipe connection at its base as well understood in the art.

The cuspidor support or arm 5 preferably has an upwardly turned circular open end 6 connected by means of a union 7 with an arm 8 which is thus mounted for rotary ad justment on the support. Arm 8 carries a alve (not shown) for controlling the water system for flushing the cuspidor bowl which is supplied through a pipe 10 pivotallv connected by a union 11 with a valve 12 carried by the support and supplied with water through a pipe 13 extending through the latter.

Arm 8 comprises a hub 18. the lower end p or which is connected as described by means of union 7 with the support. The upper end of the hub is formed with an upwardly opening circular seat 19 concentric with the end of the arm 5} on which the hub is mounted. e T int howl is supported on l9 192 1.. no. senses.

and discha into support 5 through the hub 18 which forms in ettect a part of the latter.

The cuspidor bowl is preferably constructed of glass or porcelain, having a central waste outlet about which the bowl bottom curved downwardly as at 20 and seated in an annular holder 21. I The latter has a depending flange 22 extending downwardly through seat 19 into the support or hub 18, the outer side of the flange adjacent its bottom being inclined downwardly and outwardly as at 23. A screw 24 accessibly located. in the s pport bears at a downward inclination. against the inclined surface 23 of the flange and thus secures the bowl in its seat by means, however, enabling it to be readily inserted and removed.

It is desirable toprovide for the location of the bowl on its seat with the water receiving portion in the upper part of the bowl registering properly witlrthe usual flushing nozzle and for thispurpose the bowl holder 21 carries a dowel pin 27 cooperating with a hole in the support so located as to insure theproper positioning of the bowl with regard to the nozzle. To assemble the parts the bowl holder flange 22 is inserted in the support seat and rotated until the dowel pin is engaged with its hole after which the bowl is lowered into contactwith the seat. and. secured by turning screw 2%.

There is combined with the above bowl and support construction an advantageous water seal and trap for solid particles, such as clental fillings and the like, the parts of which are also eiliciently devised and conveniently detachable for cleaning. To this end the waste opening of the bowl. or, more specifically. its holder 21, is provided with a shoulder 28 on which rests the outwardly flared upper end of a spout 30 of generally cylindrical shape and open at both ends. The spout is preferably provided with a yieldable gasket ring 31 or rubber or other suitable material cooperating with shoulder 28 so that the waste from the bowl is discharged through the spout. Preferably also a collec tor tube 82 is placed in the upper end of the spout as shown with its flared upper end detach ably fitting the converging walls of the bowl opening to collect and direct the water into the spout and improve the appearance of the bowl outlet.

Cooperating with the spout 3O a container d Wchahly conn cted "scent upper end with the spout as by means of thread convolutions 34 formed in the walls of these parts. The upper end of the container is also preferably turned outwardly as at 35 above a second shoulder 36 on the bowl holder 21 to prevent the container from being dropped into the support. Container 33 has a closed lower end 37 and is provided with waste openings 38 in its sides above its bottom and above the lower end 39 of spout 30 so that these parts form an eflicient water seal for the bowl outlet as well as a trap for receiving and retaining solid particles such as dental fillings and the like. To increase the etliciency of the construction in this respect there is preferably provided a bafile plate 40 supported by strips 41 on the lower end of the spout in horizontal position at a distance below the latter with its periphery adjacent but spaced from the sides of the container. The water descending through the spout has its downward motion arrested by this battle which tends to deflect it laterally outward in the general direction of thewaste openings 38, while any solid particles are carried to the edge of the battle out of the maincurrent and inevitably drop and remain in the container bottom. It is apparent from this construction that the collector tube 32 may be easily lifted from the bowl outlet and the spout and container then lifted out. The latter parts may be quickly unscrewed and detached from each other to thereby afford access to the bottom of the container and to facilitate cleaning of the parts. The invention thus provides an eflicient and durable form of construction for the bowl parts and support, which is practical and economical from a manufacturing point of view and adapted for quickly and conveniently assembling and detaching the parts to facilitate cleaning and repair.

I claim as my invention:

1. The combination of a cuspidor bowl trap having a waste opening and provided thereabout with a shoulder, of a spout provided adjatent its upper end with gasket means adapted to be seated on said shoulder to support said spout in said opening and seal the latter against the escape of gas, a container having an open upper end receiving the depending end of said spout and threadedly and detachably connected with the latter at a distance from its lower end, said container having its walls formed with outlet means located above the lower end of said spout and a baflle plate supported by the lower end of said spout in spaced relation with the latter and the container bottom for deflecting the water toward said container outlet means.

2. The combination with a cuspidor bowl having a waste opening and an annular shoulder thereabout, of a spout having an outwardly flanged upper end provided with a gasket ring for contact with said shoulder to deta hably hold said opening in said bowl opening and to seal the latter against the escape of sewer gas, a container having an open upper end to receive the depending end of said spout in spaced relation with the latter provided with outlet openings located above the lower end of said spout, said spout and container being constructed of sheet metal having cooperating threaded convolu- 'tions formed therein for detachably connecting the upper end of 'said container with the intermediate portion of said spout, a baflle plate carried by the lower end of said spout in spaced relation with the latter and with the container sides and bottom to deflect the water toward said container outlet opening. and a collector tube detachahly seated in said bowl opening to collect and discharge the water into said snout.

ALPHONSE F. PIEIER. 

